A wild-type fruit fly (heterozygous for gray body and normal wings) is mated with a black fly with vestigial wings. The offspring have the following phenotypic distribution? 778 wild type, 785 black-vestigial, 158 black-normal, 162 gray-vestigial. What is the recombination frequency between these genes for body color and wing size? […]

Q. A plant is growing in the middle of a patch of bare dirt; there are no other plants within 20 meters except for for one other plant two meters away. This second plant has a straight stem and is one meter tall. The first plant sends out a shoot […]

1) Molds and mushrooms belong to the kingdom of: a) Archaea. b) Protists. c) Fungi. d) Plantae. e) Animalia. 2) Describe the following is NOT true about the plants that live in a land environment? a) The developing zygote does not need to be protected from desiccation. b) They must […]

1. If A represents atomic mass and Z represents atomic number, which of the following describes an atom after a proton is emitted from its nucleus? A. A+ 1, Z + 1 B. A-1, Z-1 C. A+ 1, Z-1 D. A-1, Z + 12. A population shows the following annual […]